Salicylic acid enhances cell growth, fatty acid and astaxanthin production in heterotrophic Chromochloris zofingiensis without reactive oxygen species elevation.

ABSTRACT:

Background

The induction of lipid and astaxanthin accumulation in microalgae is often achieved through abiotic stress. However, this approach usually leads to oxidative stress, which results in relatively low growth rate. Phytohormones, as important small molecule signaling substances, not only affect the growth and metabolism of microalgae but also influence the intracellular reactive oxygen species level. This study aimed to screen phytohormones that could promote the fatty acids and astaxanthin yield of heterotrophic Chromochloris zofingiensis without causing oxidative damage, and further investigate the underlying mechanisms.

Results

In the present study, among all the selected phytohormones, the addition of exogenous salicylic acid (SA) could effectively promote cell gr

SUBMITTER: Zhang X 

PROVIDER: S-EPMC10765886 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature